Arrived quickly. Product as describedI only used the small balls but I haven’t had any issues with them, they have all different sizes (more than shown)So, these aren’t stainless steel. The ball fits on the piercing but left a green mark under my nose where it has contact with the skin. I should’ve (did?) know better, but was hoping to be pleasantly surprised. Not really an issue, so long as they don’t falsely advertise them as stainless steel when they’re clearly not.I lost one of the balls on my earring and wasn’t sure what size so I bought the variety pack in hopes they’d have the size I needed. It sure did. I was also worried they would be cheap and turn green, but I’ve had it on for awhile and it hasn’t faded at all!Exactly what I was looking for!pretty nice quality over all, i only really bought these for the pearl ones but they’re very small, maybe 1mm, all the others are 3mm except deride ones which are 2mm, i compared them to the 3mm ones i had in and they we’re definitely smaller but not too small to put on, had trouble putting the pearl ones on but they don’t crumble apart like most cheaper plastic ones i’ve had beforeGreat replacements, multiple sizes (handy if you wear for occasions) the balls stay on well. I haven’t had any issues with them coming off .Got a forward helix done recently but the ball was very small 3mm. I have curly hair and needed something more noticeable/apparent and these are more my style! I didn't order the mixed set though I just got the assorted sizes for 16g